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can: flexcan: disable bus error interrupts for the i.MX6q 

This patch adds some Flexcan version info and removes the feature flag
FLEXCAN_HAS_BROKEN_ERR_STATE for the i.MX6Q. It also has the line [TR]WRN_INT
properly connected.

Cc: Hui Wang <jason77.wang@gmail.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
[mkl: convert to incremental patch]
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Wolfgang Grandegger 2012-10-10 21:10:42 +02:00 committed by Marc Kleine-Budde
parent 37561f68bd
commit bb698ca41b
1 changed files with 16 additions and 3 deletions
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19
drivers/net/can/flexcan.c
View File

@ -144,9 +144,22 @@
#define FLEXCAN_MB_CODE_MASK (0xf0ffffff)
/* FLEXCAN hardware feature flags */
/*
* FLEXCAN hardware feature flags
*
* Below is some version info we got:
* SOC Version IP-Version Glitch- [TR]WRN_INT
* Filter? connected?
* MX25 FlexCAN2 03.00.00.00 no no
* MX28 FlexCAN2 03.00.04.00 yes yes
* MX35 FlexCAN2 03.00.00.00 no no
* MX53 FlexCAN2 03.00.00.00 yes no
* MX6s FlexCAN3 10.00.12.00 yes yes
*
* Some SOCs do not have the RX_WARN & TX_WARN interrupt line connected.
*/
#define FLEXCAN_HAS_V10_FEATURES BIT(1) /* For core version >= 10 */
#define FLEXCAN_HAS_BROKEN_ERR_STATE BIT(2) /* Broken error state handling */
#define FLEXCAN_HAS_BROKEN_ERR_STATE BIT(2) /* [TR]WRN_INT not connected */
/* Structure of the message buffer */
struct flexcan_mb {
@ -205,7 +218,7 @@ static struct flexcan_devtype_data fsl_p1010_devtype_data = {
};
static struct flexcan_devtype_data fsl_imx28_devtype_data;
static struct flexcan_devtype_data fsl_imx6q_devtype_data = {
.features = FLEXCAN_HAS_V10_FEATURES | FLEXCAN_HAS_BROKEN_ERR_STATE,
.features = FLEXCAN_HAS_V10_FEATURES,
};
static const struct can_bittiming_const flexcan_bittiming_const = {